Thales said:
rygh said:
Thales said:
rygh said:
Thales said:
There is a lot of myth around ich and it's treatments. Despite the use of such things, here is little but anecdote to support the idea the vitamin C, garlic, beta glucan, selcon and vitachem do anything to effect ich. I do like the idea of using the word seems, at the same time people who live in mosquito areas sometimes build up an 'immunity' without taking garlic so its important to remember that correlation is not causation. You can have ich at subclinical levels. Anyway, I think critical thinking on this stuff is wicked important because without it you get killing fish that could be saved, so I wrote a series of articles about it. The first one covers some ich myths and how they got where they are today:
http://www.reefsmagazine.com/forum/reefs-magazine/77954-skeptical-reefkeeping-richard-ross.html
My opinion on where this anecdotal evidence on vitamins comes from:
KEY: A lot of people out there do not feed their fish all that well.
Mostly cheap flake food, and maybe a few non-enriched brine shrimp.
It has been pretty much proven that poor nutrition can hurt your immune system. People, fish, whatever.
And since ich is often present, a fish with a damaged immune system might get it fairly easy.
In that situation, adding extra vitamins could really improve the immune system, which would then have a real impact on ich.
Interestingly, it still might not be the vitamins directly. In adding vitamins, it could simply be the hobbyist noticing
and feeding better in general at the same time. But psychologically, the "big difference" seems to be the vitamins.
So it could be real causation, and real evidence, but only for a specific situation. ... Maybe.
Of course it could be, but you need real evidence to show it, which is kinda the whole point right?
I would want to see support for points one and two. How nutritionally deficient is cheap flake food? I suspect not so much. I also suspect that most off the shelf saltwater food are just fine nutritionally and in regards to vitamin content.
I would also want evidence that vitamins make a big difference, or any difference, in fighting off the parasite.
It also depends on what is stressing the immune system - fat healthy fish that are shipped and moved to a new system can often show ich, but that seems to have little or nothing to do with nutrition.
There are a lot of things that you can make to seem to make sense when you right them out - I could write out a compelling list to support the existence of bigfoot, that the earth is 6000 year old, that vaccines cause autism or you could take the information in reefloves link to show that garlic actually causes ich and the ich related deaths of fishes - but that still isn't evidence, its conjecture.
Hey, you know about transitive logic. (And of course the common fallacies thereof)
Vitamins and ich: A good question.
Vitamin C and E play a BIG role in the immune system. That is a fact. Go to NIH/etc. It is everywhere.
In particular, vitamin C is important for wound healing (connective tissue).
So does it help fight ich?? : Not proven. Don't know for sure.
But since fighting ich relates to immune system and healing wounds from ich - most likely.
Likely enough for an internet post, but not for a scientific article.
BUT:
Yes, if the idea the fish are not fed well is wrong, then the whole argument breaks down.
Blows it out of the water.
Because the only way extra vitamins work is if the fish is low on them in the first place.
I don't think there should be much of a difference in the standard of evidence in an internet post and a scientific article.
Does C and E play a big role in FISH immune systems or fish wound healing?
How does the fishes immune system react to ich and how do we know that?
> I don't think there should be much of a difference in the standard of evidence in an internet post and a scientific article.
A fun separate topic. I tend to disagree, because resources, time spent, and general expectations are so different.
Although you did say "Should be". It would be a nice goal.
> Does C and E play a big role in FISH immune systems or fish wound healing?
Well, fish have a more innate immune system, instead of adaptive.
But the low level mechanics (white blood cells, and so on) are very similar.
So I do not see a big question there.
> How does the fishes immune system react to ich and how do we know that?
Well, I had to do some searching on that. A good point.
It is a parasite, not a flu/cold/bacteria.
I found an interesting freshwater (yeah-yeah) article here:
idosi.org/gv/gv3(2)09/7.pdf
Basically, the immune system seems to react like it would for other invaders, and while it may not cure it
completely, certainly has a big impact.
Which is all the data we need. Because it does mean that a weakened immune system versus
healthy one will make a difference.
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Side point:
This theory is the only one that also explains why so many scientific tests fail to see a connection
between vitamin C and ich.
The problem is : All of these details tests (like the one linked above) are done by advanced aquarists, which means the
likelihood of them having poorly fed fish to start with is low.
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But of course - I still have no way of proving the first and most key point that fish are low
on vitamins in the first case.
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The way to prove this:
Give fish crappy but not unreasonable food for a few months, low in vitamin content. Testable?
Expose them.
Switch some to good food, high in vitamins. Others not.
Check the difference.